Device for holding inserts.



A. H. REID.

DEVICE FOR HOLDING INSERTS.

19211101111011 r1121) JUNE 14, 1011.

1,021,069. Patented Mar. 26, 1912.

ANDREW H. REID, OF TORONTO, ONTARIO, CANADA.

DEVICE FOR HOLDING INSERTS.

Application filed June 14, 1911.

Specification. of Letters Patent. Patented D131, 26, 1912.

Serial No. 633,124.

To all whom it may concern Be it known that I, ANDREW I-I'Uen' Item, acitizen of the Dominion of Canada, residing at Toronto, in the county ofYork, Province of Ontario, Canada, have invented certain new and usefulImprovements in Devices for Holding Inserts, of which the following is aspecification.

This invention relates to improvements in insert holding devices and itrelates more particularly to devices for holding inserts which arepermanently associated with castings such for instance as thereinforcing inserts for brake shoes.

Heretofore the inserted reinforcing pieces have been held by nails orequivalent devices, the shanks of which are driven into one of themembers of the mold. This is objectionable however in that it requiresconsiderable time and effort to position the insert and to finish thecasting. The devices which form the subject of the present invention areused in pairs, one member of each pair being associated with acorresponding end of the insert; and said devices are so fashioned as topositively support the insert and at the same time to be readily andquickly disengaged therefrom.

Embodiments of the invention are disclosed in the accompanying drawingswherein Figure 1 is a side elevation partly in section showing thepresent improvements applied in the manufacture of brake shoes, inconnection with tubular inserts; Fig. 2 is a top plan view of the same;Fig. 3 is a front view of an alternative form of insert holding deviceespecially applicable to inserts in the form of flat strips which aredisposed in planes transverse to the brake shoe; Fig. 4 is a sectionalview of the same; Fig. 5 is a front view of a further alternative formof insert holding device especially applicable to an insert in the formof a flat strip which is disposed in a plane longitudinal of the brakeshoe; Fig. 6 is a side view of the same; Fig. 7 is a front view of afurther alternative form of insert holding device especially applicableto inserts in the form of solid rods; and Fig. 8 is a sectional View ofthe same. Fig. 9 is a cross-section through a mold for casting theshoes.

Similar characters of reference designate corresponding parts throughoutthe several views.

The ns holders comprise in all instances blocks 1. which are removablypositioned in the mold at the ends of the openings formed by thepatterns and which have means for detachable and positive supportingengagement with the ends of the inserts.

The form of construction shown in Fig. 1 is applicable to tubularinserts, shown at A. Three of these inserts are shown. The block 1 inthis form has in end elevation the outline of a parallelogram in orderto conform to the longitut'linal outline of the casting, (not shown) itbeing understood that the casting is a brake shoe. Upon the inner faceof the block 1 projecting pins 3 are provided. In the embodiment shownthe pins 3 project axially from .coniform bosses 2 and while theprovision of these bosses is preferred it is not necessary. The pins 3project into the inserts, centering the latter and the inserts seatagainst the shoulders l which occur at the junction of said pins andsaid bosses. The latter project into the ends of the casting, formingcorresponding coniform openings which lead to the inserts.

The construction shown on Figs. 3 and 4; is intended for inserts in theform of flat strips and which are arranged in planes transverse to thecasting. In this case the block is of the same general outline as thatdescribed in Fig. 1 and its inner face is provided with vertical grooves5 corresponding to the number of inserts to be employed, and having attheir lower ends lugs or steps 6 for positively supporting the inserts.It will be understood that the inserts are of a length to project beyondthe casting at each end and that their projecting portions are centeredin the grooves 5 resting on the said lug or steps 6 at the lower ends ofsaid grooves.

The construction shown in Figs. 5 and 6 is intended for inserts in theform of flat strips which are arranged in planes longitudinal of thecasting. The block 1 has the outline described and its inner face isprovided with a transverse groove 7 it being assumed that only oneinsert is to be employed. In this case the insert is of a length toproject beyond the casting at each end, and its projecting end portionsare centered and supported in the groove 7.

The construction shown in Figs. 7 and 8 is especially applicable toinserts which are in the form of solid rods, although it may be used inconnection with tubular inserts. In this case, the block 1, having theoutline described is provided with openings 8 which extend from itsinner face, correspond in number to the inserts, and receive theprojecting ends of the latter thereby centering and supporting saidinserts. Manifestly, after the article has been molded the blocks may bereadily and quickly stripped and the projecting portions of the inserts,if any there be, may be readily and quickly severed.

Having fully described my invention, I claim 1. A device for holdinginserts to be permanently associated with a casting and comprising ablock shaped to fit at either end of the opening made by a pattern in amold and having its inner face fashioned for detachable supportingengagement with the adjacent end of the insert, said block being adaptedto cooperate in its supporting function with a similar block at theother end of said opening.

2. A device for holding inserts to be permanently associated with acasting and com prising a block shaped to fit at either end of theopening made by a pattern in a mold,

and having means for detachable supporting engagement with the adjacentend of the insert, said block being adapted to cooperate in itssupporting function with a similar bloekat the other end of said openg Adevice for holding inserts to be permanently associated with a brakeshoe casting and comprising a block having the general cross sectionaloutline of a parallelogram and having itsinner face fashioned fordetachable supporting engagement with the adjacent end of the insert.

4. A device for holding tubular inserts to be permanently associatedwith a brake shoe casting and comprising a block having the generalcross sectional outline of a parallelogram and having its inner faceprovided with one or more conical bosses and with stems projectingaxially from said bosses.

In testimony whereof I affix my signature in presence of two witnesses.

ANDREW H. REID. lNitnesses ARTHUR F. LoBB, LILY HALL PAGE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

